Platen-spacing device for type-writers.



PATENTED DBG. 4, 1906.

M. KLAGZKO. PLATBN s-PAGING DEVICE FOR TYPE WRITERS.

APPLICATION FILED APB.3.1906.

, Riga, in the Ba tic Provinces, Russian Empire, have invented certain new and useful 'plementary spacing device bein such that 'forming the invention. Fig. 2 is a section MAX KLAGZKO, OF RIGA, RUSSIA.'

PLATEN-SPACING DEVICE FOR TYPE-WFllTfEFiS- Specification of Letters Patent.

Patented Dec. 4, 190,6.

Application flled April 3. 1905. Serial N0- 253,722.

To` all whom it may concern: Be it known that I, MAX Knaczxo, a subject of the Em eror of Russia, residing at Improvements in Platen-Spacino1 Devices for Type-Writers, of which the following is a speciiication.

The present invention relates to a supple-l mentary platen-spacing device adapted for use in connection with Ordin ary type-writing machines, and has for its object to enable the same machine to be used both for languages which are written from right to left-as, for instance, Hebraic-and those which are written from left to right-as, for instance, English-the construction of the said supit can be aixed to practically al systems of type-writing machines Without anydi'liiculty. I will describe my invention with reference to the accompanying drawings, in which-1- Fi e 1A is a rear elevation of the device tlnough the center of Fig. l. Fig. 3 is a side elevation of the device, showing the method of its connection to a type-writer frame. Fig; 4 is a plan view of Fig. 3.

he supplementary spacing device forming the subjectmatter`of the present invention can be applied to any ordinary typewriting machine, the specific form of the type-writer shown in the drawings serving merely as an example.

'In the fornr or' type-writer shown the platen 1 carries a rack 2, which engages with a pinion 3,`sliding on a spindle 4. The left end of the pinion 3 is provided with teeth 5, engaging with similar teeth with which a ratchet-wheel 6 is rovided in such way that the pinion can turn loosely in the one direction, but in the other direction is adapted to be held by the teeth of the'ratchet-Wheel 6. For spacing the ratchet-wheel 6 the usual spacing-pawl 7 is used, which is o erated lom a spacingdgey 8 by means of evers 9 and 10, which swing the shaft 11, carrying the pawl outward.' In order to bring the pinion 3 out of engagement with the ratchetwheel 6 and release the carriage 1, bars 12 and 13 areprovided, rotating on pivots' 14 and 15, the bottom part of bar 13 being con- I nected with the pinion 3. When the top l art of bar 12 is pushed back, the top part ol" ar 13 is depressed and'its bottom part pushedinward with the pinion 3, compressing l a spring 16, so that the platen is free to be.

moved 1n either direction.

The auxiliary spacing device consists of a frame 17, which canbe screwed onto the back of the ordinary type-writing machine 13 by means of lugs 19. The said frame 17 is provided with rails 20 and 21, on which run the wheels 22 and 23 of a .carriage 24, which can by clutch-teeth 30 of a ratchet-wheel 31,- mounted to turn loosely on the aforesaidy pivot 29 and normally held from turning in one direction by a pawl 32, the pinion 28 being held in engagement with the ratchetwheel 31 by means of a spring 47.

For spacing the carnage 24 an arm 33.,

carrying the aforesaid pawl 32, is pivoted on two arms 34 and 35 of the frame 17, so as to be swung to and fro in same and bring the' pawl 32 in and out of engagement with the ratchet-wheel 31. The swinging otI the arm 33 is effected from the spacing-keySby means of an arm 36, which is coupled to the bar 37 of the spacing device ofthe main machine and pulled inward with said arm when the spacing-key 8 is depressed.

For securing the auxiliary carriage 24 to the platen so that both may have the same movement the platen-shaft 38 of the platen is provided with an upright arm 39, fitted to turn loosely on the shail; and having a hole in its upper end. To this arm are fastened, by means of a pivot 40 or the like, two arms 4() and 41, whose outer ends are bent downward and forked to grip the bar 42 of the carriage 24 between the stops 43 and 44, so

`that when the auxiliary carriage is moved longitudinally the platen is moved with it. In order to disconnect the platen 8 from the spacing device of the main machine, so that the auxiliary carriage 24 can be spaced in the reverse direction, the arm 40 is provided lwith a projection 45, which on the arm 40 4]. bel mg depressed presses back the top part of the bar 12 and brings and holds the teeth 5 out of engagement. The auxiliary spring 25 is wound to greater tensionthan the ordinary spring, so that the former can draw the carriage from lfl't to right against the tension of the latter.

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When the machine is used in the ordinary Way, the auxiiiery device is removed und then the key S o erates the main machine.

Having now escribed my invention, what l claim, and desire to secure by Lettes Patent, is-f 1. The combination with a' type-Writer having a carriage and controiing-eseapement devices, of a second carriage cari-ying a spacing-rack and a spiing, e frame on which the said carriage with its spacing-bai? oenbe moved r1n en opposite direction to the tension ofthe ma1n-cerr1age spring, lugs whereby the Saidimme can be attached to the type-writer treme, and means Whereby'the pieten cenlbe moved lto' and fro ywith the aforesaid second enfra-ge substantiellyes and for the purpose eseiibed.

The combina-tion with the zeeriage `of esigees the typewriter, With a second or auxiliary `ze eerriege running on a frame' attached tosse type-writer, of" two controlling-escape e t on the mein machine'and the frame attach'l c to same, arms to form e detachableconneef/-fv s .tion between the auxiliary carriage and tHe/255 platen of the main machine withmeans for releasing the controlling-'escapement of tlie/ v main machine, and a spring on the {Tame/for operating the-auxiliary carriage in an oppo- .Y site direction to the maimeairiege'movement 30 'j substantially as and "for fthe purpose -described and shown.

In Witness whereof I have hereuntosetmy hand in presence of-twowvitnesses.

MAX KLACZKO. v Witnesses:

M. Gouines, AEDGAR STEIN. 

